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Ninth Grade (Grade 9) Anatomy and Physiology Questions

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Grade 9 Circulatory and Immune Systems
Red blood cells carry oxygen.
  1. True
  2. False
Grade 9 Skin, Skeleton, and Muscles
Hinge joints are freely movable joints found in the                   .
  1. ribs and spine
  2. elbows and hips
  3. elbows and knees
  4. shoulders and hips
Grade 9 Anatomy and Physiology
Humans sweating in response to increases in body temperature is an example of
  1. homeostasis.
  2. reproduction.
  3. metabolism.
  4. growth and development.
  5. cell structure.
Grade 9 Respiration, Digestion, and Excretion
Enzymes in the saliva begin the digestion of
  1. acids.
  2. fat.
  3. protein.
  4. starch.
Grade 9 Circulatory and Immune Systems
Some bacteria produce poisons called
  1. histamines.
  2. pathogens.
  3. phagocytes.
  4. toxins.
Grade 9 Circulatory and Immune Systems
The pulmonary artery is a major blood vessel that carries blood to the lungs for gas exchange. In what way is the pulmonary artery different from other arteries?
  1. It carries blood towards the heart, while most arteries carry it away from the heart.
  2. It carries blood away from the heart, while most arteries carry it towards the heart.
  3. It carries deoxygenated blood, while most arteries carry oxygenated blood.
  4. It carries oxygenated blood, while most arteries carry deoxygenated blood.
Grade 9 Respiration, Digestion, and Excretion
What does the pancreas do?
  1. It cleans the blood as blood flows through the pancreatic tissues.
  2. It absorbs nutrients needed for growth, maintenance, and repair of cells.
  3. It releases the hormones insulin and glucagon into the bloodstream.
  4. It releases enzymes into the small intestine to aid in the digestion of food.
Grade 9 Skin, Skeleton, and Muscles
The physical foundation of the body is the                 system.
  1. circulatory
  2. endocrine
  3. muscular
  4. skeletal
Grade 9 Nervous and Endocrine Systems
What type of cell sends electrical messages around the body?
  1. brain cell
  2. dendrite
  3. neuron
  4. synapse
Grade 9 Human Reproduction
Approximately how long does it take for childbirth to occur, from fertilization to birth?
  1. nine months
  2. three trimesters
  3. 280 days
  4. all of the above
Grade 9 Nervous and Endocrine Systems
Which bests describes the function of the body system in the diagram?
Endocrine System
  1. pathogen and disease defense
  2. hormone secretion and body regulation
  3. nutrient absorption and waste excretion
  4. oxygen delivery and carbon dioxide removal
Grade 9 Respiration, Digestion, and Excretion
The digestive organ where most chemical digestion takes place is the
  1. amylase.
  2. peristalsis.
  3. stomach.
  4. small intestine.
Grade 9 Circulatory and Immune Systems
How does the human immune system distinguish between healthy body cells (self) and viruses or bacteria (non-self)?
  1. Healthy body cells do not have antigens.
  2. Unlike invaders, healthy body cells contain DNA.
  3. Viruses and bacteria have antigens on their surface.
  4. Viruses and bacteria are much larger than healthy body cells.
Grade 9 Circulatory and Immune Systems
What component of blood carries oxygen in the blood?
  1. albumin
  2. hemoglobin
  3. leukocytes
  4. platelets
Grade 9 Respiration, Digestion, and Excretion
Which organ transports carbon dioxide out of blood and transports oxygen into blood?
  1. heart
  2. lung
  3. brain
  4. bladder
Grade 9 Human Reproduction
What is fertilization?
  1. joining of a sperm
  2. joining of a sperm and egg cell
  3. joining of an egg cell
Grade 9 Skin, Skeleton, and Muscles
The masseter is the most powerful muscle in your body. It helps you to
  1. lift a heavy box.
  2. jump really high.
  3. bite and chew food.
  4. pump blood through your veins.
Grade 9 Respiration, Digestion, and Excretion
What is the function of chewing?
  1. to exercise jaw muscles
  2. to make food taste better
  3. to increase the food's surface area for digestive enzymes
  4. to improve the ability of food to pass through the intestines
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